The White House said little about how he's celebrating. He played golf on Saturday with friends from his days in Hawaii and Chicago. Some were expected to join him at Camp David.

Mr Obama is scheduled to return to the White House on Sunday afternoon. His week ahead includes travel to the West Coast to discuss plans to help homeowners, appear on The Tonight Show with Jay Leno and visit with troops at Camp Pendleton.

He also has a White House meeting Thursday with the prime minister of Greece.

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